The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 17, 1978
Filed:
Apr. 13, 1976
Applicant:
Inventors:
Chester E Ramey, Spring Valley, NY (US);
John J Luzzi, Carmel, NY (US);
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ; C08K / ;
U.S. Cl.
CPC ...
260 / ; 26029363 ; 26029364 ;
Abstract
Piperidyl esters of the formula ##STR1## wherein R.sub.1 is hydrogen or lower alkyl, R.sub.2 is hydrogen, oxyl alkyl, alkenyl, alkinyl, alkoxy-alkyl, aralkyl or lower acyl and n is 2 or 3, and when n is 2, R.sub.3 is a diacyl of 36 carbons and when n is 3, R.sub.3 is a triacyl of 37 to 54 carbons. These compounds are useful as light stabilizers of polymeric materials.